A ball is dropped downwards. After $1$ second another ball is dropped downwards from the same point. What is the distance between them after $3\, seconds$...........$m$
A ball is dropped downwards. After $1$ second another ball is dropped downwards from the same point. What is the distance between them after $3\, seconds$...........$m$
$25 $
$20 $
$50$
$9.8 $
A ball is dropped downwards. After $1$ second another ball is dropped downwards from the same point. What is the distance between them after $3\, seconds$...........$m$
Distance between the balls = Distance travelled by first ball in $3$ seconds -Distance travelled by second ball in $2$ seconds $=\frac{1}{2}g\;{(3)^2} - \frac{1}{2}g\;{(2)^2} = 45 - 20 = 25\;m$
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